*{
	padding: 0px;
	margin: 0px;
}
a{
	text-decoration: none;
}
.header{
	width: 100%;
	height: 100px;
	background-color: black;
	position: fixed;
	top:0px;
	left:0px;
	
}
.header1{
	display: block;
	font-size: 24px;
	color: white;
	text-align: center;
	line-height: 100px;
	overflow: hidden;
	
}
.bottom{
	width: 100%;
	height: 100px;
	background-color: black;
	position: fixed;
	bottom:0px;
	left: 0px;
	
}
.main{
	width: 100%;
	position:absolute;
	top:100px;
	bottom:100px;	
}
.header2{
	float:right;
}

.mg1{
	display: inline-block;
	float: right;
	margin-top:-60px;


	
	
}
.mg2{
	display: inline-block;
	float: right;
	margin-top:-60px;
	margin-right: 30px;
	
}

}
.bottom>a{
	padding: 40px 262px 40px 150px;


}
.icon:hover{
		background-image: url(imgs/对话框1.png);
}
.icon1:hover{
		background-image: url(imgs/通讯录.png);
}
.icon2:hover{
		background-image: url(imgs/发现1.png);
}
.icon3:hover{
		background-image: url(imgs/我2.png);
}